class_docstr: Represents a RAM requirement in an execution environment for an operator.
code: def __init__(self, qty):
      super().__init__("RAM", "MB", qty)
  
imports: from __future__ import annotations
  from airflow.configuration import conf
  from airflow.exceptions import AirflowException
label_desc: Use image node_id 1 to create a new RamResource object from inherited base classes: Resource with example: obj = RamResource(qty)